# CVE-2009-5020: Open redirect in n/a

> Remote attackers can redirect users to malicious sites via AWStats, facilitating phishing attacks against web analytics users.

- **Severity:** Medium 5.8 (`AV:N/AC:M/Au:N/C:N/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 2 Dec 2010
- **Updated:** 16 Sep 2024
- **Also known as:** DEBIAN-CVE-2009-5020, GHSA-wh75-j83p-2h8c

## What is CVE-2009-5020?

CVE-2009-5020 is a medium-severity vulnerability in n/a, published on 2 Dec 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Open redirect vulnerability in awredir.pl in AWStats before 6.95 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2009-5020?

It affects 1 product.


Products: Awstats Awstats.

## How do I fix CVE-2009-5020?

Upgrade to a fixed version.

## Is CVE-2009-5020 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-5020 exists.

Public exploit code:

- AWStats < 6.95 - Open Redirect (nuclei): http/cves/2009/CVE-2009-5020.yaml

## Other vulnerabilities in n/a

- [CVE-2020-29600](https://insights.sbomify.com/CVE-2020-29600/): Path traversal in n/a (critical 9.8)
- [CVE-2017-1000501](https://insights.sbomify.com/CVE-2017-1000501/): Path traversal in n/a (critical 9.8)
- [CVE-2025-63261](https://insights.sbomify.com/CVE-2025-63261/): Command injection in n/a (high 7.8)
- [CVE-2010-4367](https://insights.sbomify.com/CVE-2010-4367/): Code injection in n/a (high 7.5)
- [CVE-2010-4368](https://insights.sbomify.com/CVE-2010-4368/): Code injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-5020 and fix it if it is affected.

What it is: CVE-2009-5020 is a medium-severity vulnerability in n/a, published on 2 Dec 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-5020 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2009-5020/ (Markdown: https://insights.sbomify.com/CVE-2009-5020/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-5020
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-5020
- OSV: https://osv.dev/vulnerability/CVE-2009-5020

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-5020/
Summaries are generated and may contain mistakes; the official description above is the record.